Definitely Banana and Miss Melroy, they're two of the most ticklish models period. Neither did nudity and they're still my favorites. Lindsey from real tickling stands out too, I loved her laugh. I'mma take some heat for this, but I don't think Tasha is that genuinely ticklish.
There are some models that are almost typecast in certain roles, so to speak. I've never been too big a fan of Tasha as a lee, but I've always liked her as a ler. Probably because of her dominant, commanding presence. I'm the type that would rather see the giant muscular amazon tickle the cute little cheerleader rather than the other way around (not that Tasha's a giant muscular amazon, but you know what I mean).